Tool



June 5, 1928.

W. HEMPHILL, JR

TOOL

Filed April 29, 1927 Patented June 5, 1928.

UNITED STATES WILLIAM HEMPHILL, JR, OF PHILADELPHIA, PENNSYLVANIA.

'roon Application filed April 29,1927. Serial No. 187,476.

This invention, generally stated, relates Fig. 4 is a view in section taken upon the to a mechanics tool and has more especial relation to a so-called combination tool such,

for instance, as may be used in the cutting of pipe, may be used as a pair of pliers to straighten out tubing, may be used as a wrench, as a hack saw, as a file, and which my be used in numerous other capacities.

The leading object of the present invention may be said to reside in the-provision of a tool of the character stated which is of simple, inexpensive, and efficient construction possessed'of structural details whereby relatively thin tubing may be efliciently and expeditiously out without mutilation of the tube ends, and whereby the cut may be effective in what is termed in the trade a straight cut.

A further object of the present invention is to provide a tool of the character stated in which the cutting blades may be removed so that the tool can be used as a pair of pliers in order to straighten out tubing.

A still further object of the present invention is to provide a device of the character stated in which during the cutting operation the so called shavings from the tubing during the cutting operation are prevented from gaining access to the tubing interior.

A still further object of the present invention is to provide a device of the character stated which may be expeditiously operated, which may be employed in a very small space, and in which the parts maybe readily replaced in case of breakage.

Other and further objects of the present invention reside in the provision of general details of construction and in the arrangement and combination of parts for attaining the results sought by the foregoing objects.

The invention consists of the novel construction hereinafter described and finally claimed.

The nature, characteristic features, and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof, and in which:

Fig. 1 is a view in side elevation of a tool embodying the invention,

Fig. 2 is a view in section taken upon the line 22 of Fig. 1,

Fig. 3 is a view in section taken upon the line 33 of Fig. 1,

line 4 4 of Fig. 1,

5 is a view of the file plate detached,

Fig. 6 is a View of the hammer plate detached,

Fig. 7 is a view of the holding block detached, and i Fig. 8 is a view of the cutter plate detached.

For the purpose of illustrating my invention I have shown in the accompanying drawings one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.

1 designates my novel construction of pliers or combination tool, the same com prising the handle members 2 and 3 which terminate in the jaws 4 and 5 respectively, which are held in pivotal relation by the screw 6. The handle member 2 may be slightly shorter than the handle member 3, and terminates in the conical terminal 7 adapted for use as a reamer, while the terminal of the handle member 3 is formed into a wrench 8. The outer portion of the jaw 5 has a recess 9 therein in which a file blade 10 is secured by means of screws 11, whose heads are preferably countersunk flush with the wall 12, as will be understood from the upper left-hand portion of Fig. 1. The outer portion of the jaw 4 has a recess 13 therein, in which is seated the hammer plate 14, which serves as a hammer and is secured in position by the screws 15 whose heads are countersunk flush with the wall or surface 16, as will be understoodfrom the lower left-hand portion of Fig. 1.

By this construction a very neat appearance is given to the outer faces of the jaws, and whenever it is desired to replace the file blade 10 or the hammer plate 14, it can be readily done by removing the screws 11 and 15, as will be understood from Fig. 3.

Within the recess in the jaw 5, bounded by the top wall 12 already referred to, and the end walls 17 and 18 and the inner wall 19, I secure the upper cutter blade 20, which has a plurality of cutting teeth 21, 22, and

23, said cutter blade being secured against the wall 19 by the block 2a, which has the curved openings 25, 26, and 27' of varying diameter, each opening being slightly larger than the alining teeth of the cutter blade and of the same diameter as each of the curved openings as 28 on the opposite side of the cutter blade 20. The block 24 is held in position by screws 29 which pass through the holes 30 in the block 24L and the alining holes 31 in the cutter blade 20, and are threaded into the solid portion 32 of the jaw 5, as will be understood from the upper portion of Fig. 4c. The lower cutter blade 33 positioned in the jaw 4 is a duplicate of the upper blade 20 already described and is held in position by the block 34 and the screws 35. The lower cutter blade 33 has cutting teeth 36, 37, and 38 disposed oppositely to the teeth 21, 22, and 23' respectively, when the blades are assembled as seen in Fig. 1; and. the lower block 34 has the concavities 39, 40, and 41 arranged oppositely to the concavities 25, 26, and 27 of the upper block 24:. It will thus be seen that due to the similarity or complementary character.

of parts, as well as the symmetry of construction, the blades and blocks may be reversibly assembled.

Among the advantages claimed for my invention, mention may be made of the following:

The hammer plate may be readily replaced when worn out. The file plate may be readily replaced When worn out. The cutters may be readily replaced when worn out. The plates may be employed efliciently for two hundred cuts or more. The wrench can be replaced if broken without obtaining a new tool. The reamer parts may be replaced without obtaining a new tool. The tool is a time saver, and a space saver, and keeps the shavings from getting into tubing. The tubing may be out without having the shavings gain access to the tubing. The device may be used as pliers and to close up end of tubing, and to cut tubing straight. The device, if desired, may be used for close up cuts by moving the blades to the exterior oi the jaws, the blades can be taken out and the pliers can be used to straighten out tubing.

It will now be apparent that I have devised a novel and useful construction of tool which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have in the present instance shown and described the preferred embodiment thereof which has been found in PI'H'C? tice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

lVhat I claim as new, and desire to secure by Letters Patent, is:

l. A tool of the character stated, comprising a pair of movable jaws each having fitted thereto a block having opposed graduated semicircular openings, cutting blades having serrated cutting edges in register with said openings, and means for removably securing said blades with respect to said blocks.

2. A tool of the character stated, comprising a' pair of movable jaws each having fitted thereto a block having opposed graduated semicircular openings, cutting blades having serrated cutting edges in register with said openings, and means for removably securing said blades with respect to said blocks, said blades and blocks being reversibly assembled.

WVILLIAM HEMPHILL, JR. 

